ostree: Add gpg-sign command

Signs a commit with one or more GPG keys.

doc/Makefile.am

@@ -125,7 +125,7 @@ version.xml:
 # This includes the standard gtk-doc make rules, copied by gtkdocize.
 include $(top_srcdir)/gtk-doc.make
 
-man1_MANS = ostree.1 ostree-admin-cleanup.1 ostree-admin-config-diff.1 ostree-admin-deploy.1 ostree-admin-init-fs.1 ostree-admin-instutil.1 ostree-admin-os-init.1 ostree-admin-status.1 ostree-admin-set-origin.1 ostree-admin-switch.1 ostree-admin-undeploy.1 ostree-admin-upgrade.1 ostree-admin.1 ostree-cat.1 ostree-checkout.1 ostree-checksum.1 ostree-commit.1 ostree-config.1 ostree-diff.1 ostree-fsck.1 ostree-init.1 ostree-log.1 ostree-ls.1 ostree-prune.1 ostree-pull-local.1 ostree-pull.1 ostree-refs.1 ostree-remote.1 ostree-reset.1 ostree-rev-parse.1 ostree-show.1 ostree-summary.1 ostree-static-delta.1 ostree-trivial-httpd.1
+man1_MANS = ostree.1 ostree-admin-cleanup.1 ostree-admin-config-diff.1 ostree-admin-deploy.1 ostree-admin-init-fs.1 ostree-admin-instutil.1 ostree-admin-os-init.1 ostree-admin-status.1 ostree-admin-set-origin.1 ostree-admin-switch.1 ostree-admin-undeploy.1 ostree-admin-upgrade.1 ostree-admin.1 ostree-cat.1 ostree-checkout.1 ostree-checksum.1 ostree-commit.1 ostree-gpg-sign.1 ostree-config.1 ostree-diff.1 ostree-fsck.1 ostree-init.1 ostree-log.1 ostree-ls.1 ostree-prune.1 ostree-pull-local.1 ostree-pull.1 ostree-refs.1 ostree-remote.1 ostree-reset.1 ostree-rev-parse.1 ostree-show.1 ostree-summary.1 ostree-static-delta.1 ostree-trivial-httpd.1
 
 man5_MANS = ostree.repo.5 ostree.repo-config.5
 

doc/ostree-gpg-sign.xml

@@ -0,0 +1,80 @@
+<?xml version='1.0'?> <!--*-nxml-*-->
+<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
+    "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+
+<!--
+Copyright 2015 Matthew Barnes <mbarnes@redhat.com>
+
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public
+License as published by the Free Software Foundation; either
+version 2 of the License, or (at your option) any later version.
+
+This library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public
+License along with this library; if not, write to the
+Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.
+-->
+
+<refentry id="ostree">
+
+    <refentryinfo>
+        <title>ostree gpg-sign</title>
+        <productname>OSTree</productname>
+
+        <authorgroup>
+            <author>
+                <contrib>Developer</contrib>
+                <firstname>Colin</firstname>
+                <surname>Walters</surname>
+                <email>walters@verbum.org</email>
+            </author>
+        </authorgroup>
+    </refentryinfo>
+
+    <refmeta>
+        <refentrytitle>ostree gpg-sign</refentrytitle>
+        <manvolnum>1</manvolnum>
+    </refmeta>
+
+    <refnamediv>
+        <refname>ostree-gpg-sign</refname>
+        <refpurpose>Sign a commit</refpurpose>
+    </refnamediv>
+
+    <refsynopsisdiv>
+        <cmdsynopsis>
+            <command>ostree gpg-sign</command> <arg choice="opt" rep="repeat">OPTIONS</arg> <arg choice="req">COMMIT</arg> <arg choice="req" rep="repeat">KEY-ID</arg>
+        </cmdsynopsis>
+    </refsynopsisdiv>
+
+    <refsect1>
+        <title>Description</title>
+
+        <para>
+            Add a new signature to a commit for each specified GPG key.
+
+            Note that currently, this will append a new signature even if
+            the commit is already signed with a given key.
+        </para>
+    </refsect1>
+
+    <refsect1>
+        <title>Options</title>
+
+        <variablelist>
+            <varlistentry>
+                <term><option>--gpg-homedir</option>="HOMEDIR"</term>
+
+                <listitem><para>
+                    GPG Homedir to use when looking for keyrings.
+                </para></listitem>
+            </varlistentry>
+        </variablelist>
+    </refsect1>
+</refentry>